baber/WOPTO huggingface dataset:
Patent GB-886956-A (GB)
Title: Improvements in or relating to electrically operated pump assemblies
IPC: F04D13/06
Filed: 1960-10-18
Abstract: 886,956. Cooling dynamo-electric machines. IMMOVILLI, S. Oct. 18, 1960, No. 35654/60. Class 35. [Also in Group XXVI] An electric motor M driving a centrifugal pump P is exposed to the pumped liquid through an aperture 401 in the pump casing, a valve V being held in the open position by the end plate 113 of the motor casing. After removal of screws 300, the motor easing and stator can be removed as a unit for servicing. The valve V then closes under the action of its spring 404, thereby preventing loss of liquid from the pump casing. The spring 404 may be replaced by a block of rubber or the like.
Patent GB-628002-A (GB)
Title: An improved manufacture of alcohol
IPC: C07C29/06
Filed: 1946-12-02
Abstract: In the preparation of ethyl alcohol by hydrolysis of a diethyl sulphate solution obtained by absorbing ethylene in concentrated sulphuric acid, separate streams of the said solution and water are passed into a hydrolysis zone, the extent of hydrolysis therein being controlled to maintain a sufficient concentration of ethyl alcohol to prevent the formation of a separate phase of diethyl sulphate, and continuous circulation being maintained to provide a substantially uniform composition, and sufficient residence time in said zone is provided to hydrolyse the major portion of added diethyl sulphate. As applied to the two-stage hydrolysis process of Specification 628,003, a C2 fraction obtained by cracking gas oil in the presence of steam is passed at about 400-500 p.s.i. into a packed tower into the top of which is fed 90-100, preferably 96-100 per cent sulphuric acid, the temperature being maintained at about 70-90 DEG  C.  The extract containing 1-2, preferably 1.3-1.4 mols. of ethylene per mol. of acid, of which about 2/3 is present as diethyl sulphate, is cooled to about 45 DEG  C., and fed through jets into a hydrolyser at about 80-110 DEG , preferably 80-90 DEG  C.  Released gas is scrubbed with water which is then fed to the hydrolyser to maintain the sulphuric acid concentration at 40-55 per cent.  Recycling of extract or stirrers provide mixing.  A residence time of 10-20, preferably 14-17 minutes, produces hydrolysis of the diethyl sulphate, about 4-6 per cent of the sulphate in the resultant extract still remaining in this form.  The extract passes to a second hydrolyser, which may be an elongated tower or pipe with means to prevent internal mixing, together with water to dilute to 40-45 per cent acid.  Residual diethyl sulphate is hydrolysed in about 20-30 minutes at 80-95 DEG C., the solution then being stripped, for example with steam in counter-current, the vapours being scrubbed, condensed and concentrated to yield alcohol.  The acid may be concentrated and recycled.  Hydrolysis of the diethyl sulphate may be completed in the first hydrolyser using longer times and/or higher temperatures, for example 5 minutes, at 110 DEG  C., if ether formation is not a serious objection.
Patent GB-345984-A (GB)
Title: Improvements in pipe unions
IPC: F16L19/02
Filed: 1929-11-22
Abstract: 345,984. Pipe joints. FOUCAULT, J., 20, Krakowska Ulica, Myslowice, Haute Silesie, Poland. Nov. 22, 1929, No. 35844. Convention date, April 25. [Class 99 (i).] In a joint of the kind in which two nuts 7, 8 engage the threaded ends of the pipes and a flange 10 on the nut 7 engages a recess in the nut 8, the depth of the flange and recess are equal so as to ensure a rigid joint when the pipe ends are drawn together on to the packing ring 24. The nut 8 is cut away so that the nuts can be brought together, projections 9 on the flange engaging grooves 12 in the nut 8. The projections and grooves are out of register when the joint is tightened. In another form the member 8 is in two parts 18, 19, Fig. 7, the parts being screwed together at 20 until the flange 10 on the nut 7 is held between the flanges 20, 21 on the two parts. Reference has been directed by the Comptroller to Specifications 3172/91, 10085/96, 17750/05, [all in Class 99, Pipes &c.]. and 117,434, [Class 99 (i), Pipes and tubes, Joints &c. for].
Patent GB-856976-A (GB)
Title: Improvements in or relating to vacuum cleaners
Inventor: CAIRNCROSS HARRY SIDNEY
IPC: F16H7/02
Filed: 1957-11-19
Abstract: 856,976. Gearing for conveying rotary motion. GENERAL ELECTRIC CO. Ltd. Nov. 10, 1958 [Nov. 19, 1957], No. 35967/57. Class 80 (1). [Also in Group XXVIII] In a belt drive for the brush 1 of a vacuum cleaner a loose friction ring 6 is interposed between the small diameter motor spindle 5 and the belt to provide an initial friction reduction gear before the belt reduction. A similar friction ring can be interposed between the belt and the driven pulley 3 instead of, or in addition to, the ring 6.
Patent GB-1277144-A (GB)
Title: Nitrogen phosphate fertilisers and their manufacture
Inventor: GREIDINGER DAHLIA S
IPC: C05B7/00
Filed: 1970-07-24
Abstract: 1277144 Prilled fertilizers CHEMICALS & PHOSPHATES Ltd 24 July 1970 [15 Aug 1969] 36036/70 Heading C1B A prilled or flaked nitrogen-phosphate fertilizer, which comprises urea and phosphoric acid and/or urea phosphate, the urea constituting the only source of nitrogen in the fertilizer and the molar ratio N : P 2 O 5  being not greater than 3À6 : 1 and which contains not more than 0À25% by weight of biuret (N : P 2 O 5 =3 : 1 corresponds to urea : H 3 PO 4  = 7À5 : 1). At a ratio of urea : H 5 PO 4  = 9 : 1, the product will contain 0À25% by weight of biuret. In a process for making the fertilizer, a melted mixture of urea and anhydrous phosphoric acid and/or urea phosphate in which the ratio of N : P 2 O 5  is not greater than 3À6 : 1 is prilled or flaked, e.g. by heating the components in an oil bath at 85-90 C. until the urea phosphate mixture becomes fluid and then pouring the fluid mixture into a prilling cup. Heating the urea with phosphoric acid appears to suppress biuret formation.
Patent GB-1001659-A (GB)
Title: Ceiling panel suspension means
IPC: E04B9/24
Filed: 1963-09-12
Abstract: 1,001,659. Suspended ceilings. ASHMAN & HART PTY Ltd. Sept. 12, 1963 [Sept. 24, 1962], No. 36047/63. Heading E1V. In means to suspend a ceiling panel 9 from an overhead support 19 (on a detent 21 thereon) comprising a mounting element 8 on or fixable to the panel 9, a hook 13 pivotally mounted on the element 8, and an abutment lug 22 to limit pivotal movement of the hook in one direction so as to define an operative position for the hook 13, one end 17 of the hook 13 engages over the support 19 in use (Fig. 4), the pivot axis being so placed with regard to the end 17 that when the hook 13 is in or near its operative position upward loads on the end 17 tend to swing it in the said direction, the hook 13 being so shaped that, if the panel 9 were raised, it would be pivoted in the opposite direction (Fig. 5) by contact with the support 19 and disengaged therefrom. The mounting element 8 comprises an upward flange 10 with the hook 13 pivoted on it at a rivet 14, passing through a mounting plate 15 on the hook 13. The lug 22 extends from the flange 10 to be contacted by the plate 15. Restraining means opposes hook movement in the opposite direction but is overcome by pressing upon the hook 13. This movement occurs when the panel 9 is being positioned (Fig. 4) and is restricted by means of a guide slot 23 into which part of a support flange enters. The restraining means may be a friction washer on the rivet 14 between the flange 10 and the plate 15 or one or more complementary locking formations on the plate 15 and flange 10, or a mound 24 on the flange 10 over which the plate 15 may ride. The mounting element 8 may be fixed to the panel 9 by a flange 11 (Figs. 1 and 2) insertable into a groove on it and may also have a panelengaging flange 12 on the flange 10.
Patent GB-1364849-A (GB)
Title: Refractory ceramic masses
IPC: C04B35/03
Filed: 1971-08-02
Abstract: 1364849 Refractory mass STRABRUKEN AB 2 Aug 1971 [3 Aug 1970] 36176/71 Heading C1J A water mixable refractory mass comprises a graded mixture of grains of burnt dolomite and optionally burnt magnesite, the finest fraction (#0À1 mm.) comprising at least a portion of burnt dolomite, the mass further comprising a water-soluble fluoride hydration retarding agent preventing or sufficiently retarding reaction between the finest burnt dolomite grains and water. The retardation agent (e.g. 1-3% by wt. of the mass) may be NaF, KF, or NH4F, sodium silicofluoride or magnesium silicofluoride. A water soluble binding agent (e.g. Na or K silicate) may be present. In Examples 1-3, masses prepared from burnt dolomite, Na or K silicate and sodium silicofluoride are prepared. In Example 4, burnt dolomite, burnt magnesite, potassium silicate and sodium silicofluoride are used to prepare the mass.
Patent GB-1148094-A (GB)
Title: Improvements in fluid flow control valves primarily for mine roof support props
Inventor: PAYNE WILLIAM WOOLLEY
IPC: E21D15/45
Filed: 1965-08-24
Abstract: 1,148,094. Valves. W. E. & F. DOBSON Ltd. 22 July, 1966 [24 Aug., 1965], No. 36202/65. Heading F2V. A combined relief and release valve for a pit prop comprises a valve closure 17 co-operating with a seat formed on a stepped bore of a seating member 11 and having a throttling portion 18 extending into the narrow part of the bore when the valve is closed. The valve closure is connected to a stem 8 by a ball and socket connection, the stem being loaded by a spring towards the valve closed position. In the event of overload, the valve is raised to provide restricted release of pressure, but on manual actuation or sudden overload, the valve is raised to allow more rapid release of pressure. The valve closure or seat preferably has a knife edge. The main portion of the valve closure is of substantially square or triangular section to allow flow to the outlets 28.
Patent GB-172229-A (GB)
Title: Improvements in aerial propellers or air-screws
IPC: B64C11/48
Filed: 1920-12-24
Abstract: 172,229. Almonacid, V. A. Dec. 24, 1920. Driving -- arrangements for screw propellers; shafts, arrangement of. - Two or more airscrews are driven by the same shaft in the same direction at progressively increased speeds. With two screws, the screw a is driven directly by the engine shaft d and the second screw b is driven through a train of gearing c and hollow propeller shaft at double the speed of the screws.
Patent GB-1521147-A (GB)
Title: Pharmaceutical compositions having psychotropic activity
IPC: A61K31/51
Filed: 1976-09-02
Abstract: 1521147 Pharmaceutical compositions SCIENCE UNION ET CIE SOC FRANCAISE RECHERCHE MEDICALE 2 Sept 1976 36411/76 Heading A5B Pharmaceutical compositions in unit dosage form comprise as active ingredient from 150 to 500 mg. per unit dosage of N, N'-{dithiobis [2 - (2 - isobutyryloxyethyl) - 1 - methylvinylene]} bis{ N - [(4 - amino - 2 - methyl - 5 - pyrimidinyl) - methyl] formamide } (or 0 - isobutyrylthiamine disulphide) in admixture or conjunction with a pharmaceutically suitable carrier. The compositions may be in the form of tablets, coated tablets, dragees, soft gelatine capsules, capsules, emulsions, suspensions, solutions, or suppositories. They may be used for the treatment of depression or hypnotic effects and to correct psychic disorders. Reference has been directed by the comptroller to Specification 1089475
Patent GB-1280207-A (GB)
Title: Organosiloxane polymers
IPC: C10N30/08
Filed: 1969-07-21
Abstract: 1280207 Fluoroalkyl phenyl polysiloxanes DOW CORNING CORP 21 July 1969 [18 Dec 1968] 36537/69 Heading C3T [Also in Division C5] A linear polysiloxane consisting essentially of units R f CH 2 CH 2 (C 6 H 5 )SiO, wherein R f  is a C 1-10  perfluoroalkyl radical, is prepared by polymerization of the cyclic trimer in the presence of a basic catalyst e.g. n-butyl lithium, an alkali metal hydroxide or silanolate or a quaternary ammonium hydroxide. The polymer is a fluid, gum, or solid of narrow molecular weight range, soluble in e.g. benzene, toluene or xylene. In examples a mixture of cis and trans [CF 3 CH 2 CH 2 (C 6 H 5 )SiO] 3  is heated with n-butyl lithium at 150‹ C. for 2-4 mins. to give polymers of number average molecular weight (M n ) of 18,800 to 100,000 and heterogeneity ratio M w /M n  (M w  being the weight average molecular weight) of 1À18; in Example 4 water is also added, to give a hydroxy-terminated polymer of M n  7000 and M w /M n  of 1À40; in Example 5 and 6 the catalyst used is (CH 3 ) 3 SiONa at 125‹ C. for some hours, giving polymers of melt viscosity 213,000 eS and 821,340 cS; in Example 7 R f  is C 5 F 11 ; in Example 8 the cis and trans isomers are separated by differential extraction of an npentane solution with acetonitrile, and the cis isomer is polymerized using sec-butyl lithium as catalyst. The polymers may be applied from toluene solution to a surface to provide a solid lubricant coating: polymers for this purpose are semi-crystalline solids having at least 150 units.
Patent GB-309118-A (GB)
Title: Improvements relating to the preparation of organic peroxides
IPC: C07C409/34
Filed: 1928-12-11
Abstract: 309,118. Straub, J. April 5, 1928, [Convention date]. Bleaching flour and meal.-Mixtures of organic peroxides, for use in bleaching flour and other milling products, a.re prepared by chemical methods from a mixture of acid chlorides. The mixtures of peroxides produced are stated to have, in general, much lower melting points than the pure peroxides, and to form, in many cases, comparatively stable supercooled melts. Methods of varying the proportions of the peroxides in the product, preferably with the object of attaining an eutectic mixture, are described. The mixture when formed may be used directly, or may be separated into liquid and solid fractions, by freezing, pressure, or other physical means. The solid fraction may be a pure peroxide. According to examples, peroxides of which ternary mixtures are prepared by the above method from mixtures of two acid chlorides, are dibenzoyl peroxide, benzoyl-otoluyl peroxide, di-o-toluyl peroxide, di-m-toluyl perovide, di-p-toluyl peroxide, and mp-toluyl peroxide. Acetylbenzoyl peroxide, hydrocinnamyl peroxide, diacetyl peroxide, and the peroxide resulting from a mixture of o-toluic chloride, m-toluic chloride, p-toluic chloride and phenylacetyl chloride are referred to. Reference is also made to methods of preparing mixture of peroxides by mechanically mixing the pure components, or by melting them together with or without the addition of a volatile solvent. The Specification as open to inspection under Sect. 91 (3) (a) states also that resinous products may be added to the supercooled melts produced in order to increase their stability. This subjectmatter does not appear in the Specification as accepted.
Patent GB-302360-A (GB)
Title: Improvements in or relating to emergency brakes for vehicles
IPC: B60T17/18
Filed: 1928-12-12
Abstract: 302,360. Knorr-Bremse Akt.-Ges. Dec. 15, 1927, [Convention date]. Controlling independently of drivers; controlling different functions by same handle or lever.- An emergency brake device for vehicles such as motor-buses, comprising a three-way valve H operated from the interior of the vehicle by a handle G to connect the compressed-air reservoir D with the rear-wheel brake cylinders B, cuts off the connection between the brake cylinders and the service valve F to prevent compressed air escaping through this valve which is in the release position. The handle G also breaks the ignition circuit of the vehicle motor by means of a short circuiting contact E. A spring S offers an initial resistance to the movement of the valve H and retains it at either end of its movement.
Patent GB-1486888-A (GB)
Title: Magnetic information storage means and verification thereof
IPC: G11B5/852
Filed: 1974-08-05
Abstract: 1486888 Document verifier EMI Ltd 5 Aug 1974 [3 Aug 1973] 37056/73 Heading G4M [Also in Divisions B6 and D2] In an apparatus for verifying a security document bearing magnetic particles having preferred axes of magnetization, selected particles having their axes oriented in specific directions, a first directional magnetic field is applied and remanence differences along a first direction are sensed. Then a second directional field, having a direction other than parallel to, and preferably normal to, the first field, is applied and remanence differences along a second direction are sensed. The resultant signals are compared, e.g. using shift registers, for verification. A coercivity check may also be made. Selected particles of the document may be oriented in one direction, the remainder being randomly oriented. Alternatively, the particles are oriented in first and second, preferably normal directions, or in first, second and random directions. The particles are γFe 2 O 3 , CrO 2  or metal powder on a carrier tape or incorporated into the document during its manufacture.
Patent GB-1447596-A (GB)
Title: Lubricating-oil containing device for an internal combustion engine
IPC: F01M11/00
Filed: 1974-08-23
Abstract: 1447596 I C engine oil sumps KLOCKNERHUMBOLDT-DEUTZ AG 23 Aug 1974 [6 Sept 1973] 37226/74 Heading F1B This invention relates to a lubricating-oil containing device for an I.C. engine and comprises a sump having three oil receiving chambers disposed in line, two outer chambers being disposed at either end of a central chamber which is closed except for connections to a suction pipe and to one or both of its outer chambers by an interconnecting pipe or pipes. In one embodiment having two inter-connecting pipes a valve arrangement is provided so that when one inlet end of an inter-connecting pipe is raised a predetermined amount above the inlet end of the other, the higher inlet and is closed whilst leaving the lower inlet open. In another embodiment only one of the outer chambers is connected to the central chamber by an inter-connecting pipe and a pump is provided to pump oil from the other outer chamber to the first mentioned outer chamber. A sump 1 comprising a floor 5 and a surrounding wall 6 has a partition wall 7 lying in a plane parallel to the floor. The wall 7 has adjacent its ends a pair of rectangular apertures which together with a pair of rectangular walls 7a, 7b define chambers 2, 4. The space below the wall 7 forms a chamber 3 which extends between and around the chambers 2, 4. A topping up pipe 8 with a non-return valve 10 and closure plug 9 leads to the chamber 3. The chamber 3 is connected to the chambers 2, 4 by suction pipes 13, 14. An engine lubricating oil pump 12 draws oil from the chamber 3 through a pipe 11 and causes oil to be drawn through the pipes 13, 14 into the chamber 3 from the chambers 2, 4. The oil returned from the engine flows into chambers 2, 4. When the sump is tilted at a steep angle, Fig. 4 (not shown), the valve 15 closes the inlet to the pipe 13 and the valve 16, connected to it by a rod 17, opens the inlet to the pipe 14 so that oil only flows from the chamber 4 to the chamber 3. In a modification, Fig. 5 (not shown), only one inter-connecting pipe is provided between one of the chambers 2, 4 and the chamber 3 and a pump is provided to supply oil from one of the chambers 2, 4 to the other.
Patent GB-1103006-A (GB)
Title: Reel or pulley for incorporation in a constructional toy
IPC: A63H33/04
Filed: 1966-08-19
Abstract: 1,103,006. Pulleys. A. FISCHER. 19 Aug., 1966 [21 Sept., 1965; 13 Jan., 1966], No. 37288/66. Heading F2Q. [Also in Divisions A6 and B8] A reel 1 for incorporation in a constructional toy has a longitudinal radial slot 4 and end flanges 2, 3 on each of which are arranged two diametrically opposed tongues 5, 6 and 7, 8, respectively, of re-entrant shape, for interlocking engagement with building bricks to construct, for example, a crank. The tongues may have extensions 103, Fig. 7, of reduced width or T-shaped extensions 103, Fig. 8.
Patent GB-321587-A (GB)
Title: Improvements in or relating to taps or cocks
IPC: F16K35/02
Filed: 1928-12-18
Abstract: 321,587. Trigwell, J. R. Dec. 18, 1928. Locking.-A locking-catch for gas taps and the like comprises a right angled member, the vertical arm e of which acts as a pivot in a frame or bracket r clamped to the supply pipe or cock body, whilst the horizontal arm d, biased by a spring s, normally obstructs the tap handle in the closed position, being moved aside to allow the handle to be turned. The biasing spring s bears against a block o secured by a set screw to the vertical arm e locating it in the frame r. The frame is integral with a part f encircling the supply pipe or cock body and secured thereto by a clamping plate g one end of which engages a hole k in the part f, the other end, being secured by a screw h. In a modification, Fig. 5, the horizontal arms d is adjustably secured to the vertical arm e, and the screw engages a nut x carried by the frame or bracket f. A saddle g<1> is also interposed between the plate g and the supply pipe.
Patent GB-1436304-A (GB)
Title: Pyridine and pyridine oxide derivatives and processes for their preparation
IPC: A61K31/4409
Filed: 1974-08-28
Abstract: 1436304 Pyridinediyldioxamates UPJOHN CO 28 Aug 1974 [4 Oct 1973] 37533/74 Heading C2C The invention comprises compounds having the formulµ wherein each -NHCOCOOR group is located anywhere on the ring with the proviso that one group cannot be ortho to the other; R is hydrogen, C 1  to C 6  alkyl or a pharmaceutically acceptable metal or amine cation; X and Y, which may be the same or different, are hydrogen, C 1  to C 4  alkyl, phenyl, C 1  to C 3  alkoxy, nitro, amino, trifluoromethyl, halogen, cyano, or -CO.OD, where D is hydrogen, C 1  to C 6  alkyl, phenyl, or a pharmaceutically acceptable metal or amine cation with the proviso that if R is C 1  to C 6  alkyl or phenyl, then D is C 1  to C 6  alkyl, phenyl or hydrogen; and pharmaceutically acceptable acid addition salts thereof. They may be prepared by reacting a compound having the formula either, in a solvent or base, with an alkyl, oxalyl halide of the formula or, optionally in a solvent, with a dialkyl oxalate of the formula where Alk is C 1  to C 3  alkyl, and, if desired, transesterifying to C 1  to C 6  alkyl, hydrolysing to the corresponding dioxamic acids, or converting to the metal or amine salts or pharmaceutically acceptable acid addition salts and optionally oxidizing the diester to form the N-oxide derivative.
Patent GB-1117095-A (GB)
Title: Improvements in windscreen wipers
Inventor: TOMLIN ROBERT DERRICK
IPC: B60S1/38
Filed: 1964-09-15
Abstract: 1,117,095. Windscreen wipers. ANADO HOLDINGS Ltd. 14 Sept., 1965 [15 Sept., 1964; 30 Nov., 1964], Nos. 37711/64 and 48634/64. Heading A4F. In order to reduce the tendency of a windscreen wiper blade to be lifted from the windscreen by wind pressure at least one of the yokes of the wiper harness is consistituted by at least one substantially rigid strip arranged edgewise to the back of the wiper element, and preferably by two strips 9 arranged side-by-side and spaced apart by a distance approximately the same as the width across the back of the wiper element 1. The secondary yoke 5, Fig. 1, and the secondary yokes 5 and 14, Fig. 3 (not shown), two embodiments described are so constructed, whilst the primary yokes 4 are of moulded thermoplastic material of rounded or streamlined cross-section. A wiper arm connector 6 extends between the strips 9 of the secondary yoke 5 and is pivotally connected thereto by a pin 11. The primary yokes 4 may also be formed of spaced parallel strips.